Hi Chris, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip next-20200720] [cannot apply to linus/master v5.8-rc6] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-gem-Remove... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-allyesconfig (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cf1105069648446d58adfb7a6cc590013d6886ba) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/i915/i915_irq.c:44: #ifndef __INTEL_BREADCRUMBS___ ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gt/intel_breadcrumbs.h:7:9: note: '__INTEL_BREADCRUMBS__' is defined here; did you mean '__INTEL_BREADCRUMBS___'? #define __INTEL_BREADCRUMBS__ ^~~~~~~~~~~~~~~~~~~~~ __INTEL_BREADCRUMBS___ 1 warning generated. vim +/__INTEL_BREADCRUMBS___ +6 drivers/gpu/drm/i915/gt/intel_breadcrumbs.h 7 #define __INTEL_BREADCRUMBS__ 8 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org